There may still be a few issues with the 3D Dragger, but basically it is a great design.
Please use it for the Attribute Mapping tool. I have never been able to utilize the present version of the Attribute Mapping tool with any certainty, so it really needs the upgrade.
Also: Please add a "Move 3D tool" to the Basic Tool Palette, that invokes and uses the 3D Dragger for positioning any selected object. This would be extremely useful for accurate positioning of image props and furniture without the sometimes-annoying 'stick to the ground plane' feature that the ordinary selection tool seems to invoke.